The perimeter of a rectangle is equal to 250 cm. If the length of the rectangle = 70 cm, then find its breadth.
A
25cm
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B
35cm
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C
55cm
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D
75cm
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Solution
The correct option is C 55cm Perimeter of a rectalngle = 2(length+breadth) Let the breadth of the rectangle = z cm Substituting z for breadth, we get: Perimeter=250 = 2(70+z) ⇒2502=70+z z=125−70=55cm Hence the breadth of the rectangle = 55 cm